Balances structure for a folded umbrella

ABSTRACT

The invention relates to a balance structure for a multi-folded umbrella, especially a more than four-folded umbrella. The umbrella includes a shaft having at least four tubes and a frame, wherein the first/top tube is provided with a balance structure therein. The balance structure includes a positioning rod, which can be pushed to contact with the runner or the first tube for maintaining the umbrella in a stable opening state without bias.

BACKGROUND OF THE INVENTION

A multi-folded umbrella, especially more than four-folded umbrella,includes the same number of umbrella tubes consisting a shaft while abigger runner is needed for being provided around the shaft. As shown inFIGS. 1 and 2, the diameter of the runner (2) is larger than the upperand the smallest tube (11) of the shaft. The normal opening state of theumbrella should be at the position of FIG. 1 but it is usually happenedthat the runner (2) is pushed by the bow spring (3) while the frame (4)will be bias relating to the shaft (1) as shown in FIG. 2 and the bowspring (3) would be engaged within the runner (2). So use of the priormulti-folded umbrella is not effective and convenient.

Accordingly, the present invention is to provide a balance structure forthe multi-folded umbrella, which includes a positioning rod to positionthe runner with the shaft securely when the umbrella is opened. Nowaccompanying the drawings, the structure and character of the presentinvention will be described as following.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a plan view showing a conventional multi-folded umbrella inopening state.

FIG. 2 is a plan view of FIG. 1 showing the frame of the umbrella isbias relating to the shaft.

FIG. 3 is a plan view showing a six-folded umbrella in opening stateaccording to the present invention.

FIG. 4 is a cross-sectional enlarged plan view of FIG. 3 according tothe present invention.

FIG. 5 is a perspective view showing the positioning structure of thepresent invention.

FIG. 6 is a plan view of FIG. 4 in closed state.

FIG. 7 is a plan view showing another modified embodiment according tothe present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Please referring to FIG. 3 to 5, the present invention is going to beillustrated by a six-folded umbrella here, which includes a shaft (1)and a frame (4). The shaft (1) has a first/top tube (11) to asixth/lowest tube (16) while a runner (2) is provided around the shaft(1). As the umbrella is opened, the runner (3) can be stopped by a bowspring (3) in the first tube (11) to maintain the umbrella in stableopening state. The character of the present invention is to provide apositioning structure in the first tube (11), which includes apositioning rod (5), a spring (51), and a joint (52). The positioningrod (5) is pivoted with the joint (52) and connected one end with thespring (51). When the umbrella is opened, the other end of the rod (5)will be pushed outward through a slot (111) on the first tube (11) bythe elastic force of the spring (51) and contacted with inner surface ofthe runner (2). As shown in FIG. 4, the runner (2) will be positioned ina right position relating to the shaft while the frame (4) isperpendicular to the shaft (1) without bias.

When the umbrella is closed, the second tube (12) is moved upward tourge the rod (5) upward and received in the first tube (11) accordinglyas shown in FIG. 6. Hence, the runner (2) can be moved downward to foldthe frame (4) and close the umbrella.

Accordingly, the structure provided by the present invention obtains thepredicted effect and overcomes the drawback of a conventionalmulti-folded umbrella as being opened. But the structure mentioned aboveis only an exemplary embodiment, it can be modified anyway, such asshown in FIG. 7, the positioning rod (5) is mounted beside the runner(2). When the umbrella is opened, the rod (5) is pushed inward tocontact with the first tube (11) for a similar balance positioningeffect. The modified embodiments will be claimed in this invention.

1. A balance structure for a multi-folded umbrella, especially a morethan four-folded umbrella including a shaft with an around runner and aframe, the character is to provide a balance structure in the first/toptube of the shaft, which includes a positioning rod pivoted with a jointand connected one end with a spring, wherein the rod can be pushedoutward to contact with the runner for balance positioning effect by thespring as the umbrella being opened.
 2. A balance structure for amulti-folded umbrella as claimed in claim 1, wherein the positioning rodis mounted beside the runner and it can be pushed inward to contact withthe first tube of the shaft as the umbrella being opened.